Conn. Agencies Regs. § 12-574-A49
(j) Limitations on entries.
(k) Maidens over five years old. Maidens five (5) years old or older shall not be entered to race.
(l) Restrictions on ownership by trainer. No licensed trainer shall have any interest, either by ownership of the horse or by lease of its racing qualities, in a horse of which he is not the trainer and which may be racing at the same racetrack where the trainer is licensed and currently racing.
(r) Information for initial entry.
(bb) Restrictions on acceptance of nominations. No nominations shall be accepted for a sweepstakes or other race from any person whose license has been revoked and who has not been subsequently licensed by the commission; nor during the period of suspension from any person whose license has been suspended; nor from any person who is otherwise disqualified.